1987-07-17
1988-07-19
Miller, Jr., George H.
Recorders
Thermal recording
346139C, 401 2, 219237, G01D 1510, H05B 100
Patent
active
047588462
ABSTRACT:
A heat pen comprising a first tube, a holder tube coiled with resistance wire and a metallic cylinder as a stylus. When the resistance wire is charged with electricity the metallic cylinder is heated to mark heat-sensitive recording paper. When the metallic cylinder is worn down by extensive usage, it is readily removed and replaced by a fresh metallic cylinder.
REFERENCES:
patent: 2474312 (1949-06-01), Halpern
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patent: 4328920 (1982-05-01), Vella
patent: 4435636 (1984-03-01), Royston
patent: 4439667 (1984-03-01), Sylvia
Drawing of a heated pen assembly, Kenemetrics, Inc., VR-2, 104995B.
Replacement Heat Writing Stylus Model #3197B by Teledyne Geotech of Dallas, Texas.
Brochure "MEQ-800 Microearthquake System", by Sprengnether Instruments, Inc., undated.
Brochure "Portacorder", Model RV-320, by Teledyne Geotech of Dallas, Texas, undated, and Price List dated Mar. 1, 1983 (D).
Brochure "Helicorder", Model RV-301B, by Teledyne Geotech of Dallas, Texas, Aug. 1978//A-0593, Helicorder & Accessories, Aug. 1978/1363 and Price List dated Mar. 1, 1983.
Miller Jr. George H.
Regents for the University of Oklahoma
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